Electric relay.



L. J. LE PONTOIS.

ELECTRIC RELAY. APPLICATION FILED JULY 24, 19011.

Patented Au 15, 1911.

, periphery of the'disk are UNITED STATES PATENT OFFICE.

LEONJ. LE IOIhTTOIS, OF NEW ROCHELLE,

" 7 OF NU'ILEY, NEW JERSEY.

BENJAMIH HUBD,

NEW YORK, ASSIGNOR F ONE-HALF T0 ELECTRIC RELAY.

incense.

amount of energy in one ormore secondary circuits.

My invention is particularly "appiicable toc use as e telephone relay or repeater or for a similar purpose in telegraphy. Itmay likewise be used for various other purposes and in various differentformsand relationships. One important object of my invention is the reproduction of electricenergy in the secondary circuit without materially distorting the form of the current waves or impulses. This is a feature of importance in such instances as telephony where the ac curate reproduction in the secondary circuit of the form of the impressed current waves in the primary/circuit without distortion is necessary. g y Another-object attainedby my invention is the reduction of a device in which the ratio .0 electric energy delivered to that reoeilyicd may readily controlled as desired. y invention also has the advantage of being simple in structure and mode of opcration,requiring little or no care or repair. These and other objects. of my invention will "be understood by those skilled in the art from the following description and accompanying drawings, in which Figure 1 is aeplan view partly in section of one form of relay device embodying my invention; .and Fig. 2 is a section on the line 2-2 of Fig. 1. y

Referring to the drawings there is illustrated a shaft 1 driven from any suitable source 'ofenergy as by a belt 2. The shaft is mounted in suitable bearings 3, 3" and carries a disk 4 preferably of low resistance material such as copper. Nearer the outer located two coils located respectively on opposite sides of the disk and having their axes coinciding with that of the disk. The pils are staionarv and held in position by a frame 6' of currents are to be used directly in a local a Specification of Letters Patent. Patented Aug, 15, 1911; Application filed July 24, 1908. Serial No. 445,069.

fiber or other suitable material. Engaging with the periphery of. the disk are a lurality of brushes 7 yieldably supporte 1n terminals 8 which in turn are mounted in the frame 6. The coils 5, are connected in the receiving circuit 9 from a transmitter or other source 9, either in series or parallel, the magneto motive forces acting in the same direction to produce a magnetic field as indicated by the dotted linesfi The disk 4 forms a part of the secondary circuit 10, one lead thereof being connected to all of the terminals 8 to conduct currents to or from the periphery of the disk, and the other lead be- ,ing connectedto the bearing 3 to conduct cilrrents to or from the center of the disk through the shaft 1. It will be noted that the rotating element is so disposed with reference to the exciting coils that it is ciitnnlyonce by the flux set up by said coils. In case the amplified telephonioomtlgr re ceiver or receivers 1d, the windings of the receivers will bemade to correspond to the low voltage and comparatively large ampergge of the cur-rents in the secondary circuit.

it be desired to operate receiving apparatus by means of secondary currents of high potential such as transmission over long distance, it is preferable tonuse a. suitable transindiformer 12in the secondary ci c it, as cated in Fig. 1. a a

as y

In operation the shaft and disk are driven r at any suitable speed and radially flowing currents will be linduc'ed in the disk'corresponding in strength and direction to the currents passing in thecoils 5, 5' and there by reproducing such currents in the-secondary circuit '10 although greatly amplified. The coils serve as exciting coils by' reason of there being no iron in the magnetic circuit of. the coils, the magnetic field induced thereby will be directly proportional in strength and direction .to the current impressed upon the exciting coils. ith the driven shaft, disk will therefore be directlyin strength and direction the primary circuit. It will be understood that the .main. portion of the energy appear ing in the secondary circuit is derived from the energy expended in driving the disk and that this will be subject to control as desired merely by changing the speed at'which' the disk is driven. Thus even though the constant speed of up ticne the currents induced in the to the'diii'rcntssin purel 'circuit'of the exciting coils-may sometimes be partlyiro'n, dependent upon the preference of the designer and the particular use or application of the device. Also the pri- -mary and secondary circuits may includevarious regulating and controlling devices,

, but as these form no part of-niy invention they need not be articularly referred to.

It will be un erstood that any desired number of my improved relay devices may be united and driven from a single source of power, various primary and secondar circuits being connected thereto, as desired; and in Fig. 1' I have indicated at 11 a second relay device also driven by the belt 2.

It will be understood that my invention is susceptible of various modifications in design and -for1nof structure without departing from the scope "thereof.-

Ha'vm thus descnbed my' invention, I declare at what I claim asnew and desire to secure by Letters Patent, is,-

1. In a relay device, a primary circuit 5 containing anexciting coil, a driven disk sub ected to the magnetic flux excited by said coll, a secondary. circuit and means for connecting said disk in said secondary circuit, said relay device being normally in capable of yieldin a current of its own. 2. In a relay evice, a primary circuit containing exciting coils, a driven disk subjected to a mafietic flux excited by said coils said disk ing located between said coils, a secondary circuit, and meansfor connecting said disk in said secondary circuit, said relay device being normally incapable of yielding a current of its own.

3. In a relay device, a primary circuit containing an exciting coil, a driven conductingelement subjected to the magnetic flux excited by said coil, said element having its axis coinciding with the axis of said coil, a secondary circuit, and means for connecting said element with said secondary circuit, said relay'device being normally incapable of yielding a current of its own.

4.. In a relay device, the combination of an exciting coil, a driven conductin element subjected to the magnetic flux 0 said coil. in one path only, a supply circuit for substantially o 1,ooo,ese

exciting said coil, and a secondary circuit containin said driven element, said relay device bein normally incapable of yielding a current 0 its own.

5 In arelay device, the combination of a primary circuit, a driven conducting element, means in said primary circuit for producing a magnetic flux and thereby generating electric currents in said element, the

path of the ma netic flux being constituted non-magnetic material, a

secondary circuit, and means for connecting said secondary circuit to the inner and outer portions of said conducting element.

8. In a relay device, a primary circuit having means for producing variable electric 'currentstherein, means for translating said variable electric "currents into a magnetic flux of corresponding variation, the path of the magnetic'flux being constituted substantiallly driven con cting element subjected to said magnetic flux, a secondary circuit, and

means for connecting said elementin said secondary circuit.

7; In a telephone system, an amplifying device, comprising in combination a system of flat coils adapted .to be connected to a transmitting circuit, an electrically conducting disk of non-magnetic material, mounted on a conducting shaft in axial alinement with said coils, said c'oils'being related to each other and to said disk so as to produce a symmetrically distributed magnetic field, substantially the total flux of which cuts said rotating disk, and peripheral contact'meansfor said disk, said contact means and said shaft being adapted to be connected to a receiving circuit.

A 8. In a telephone system, an amplifying relay device, comprising in combination a system of'coils of annular shape having the same internal diameter, an electrically conducting disk of. non-magnetic material mounted on a conducting shaft in axial alinement with said coils, said disk bein interposed between said coils, and dispose with reference to said coils so as to sub-- stantially preclude magnetic leakage there:

between, and peripheralcontact means for;

said disk, said coils being adapted to be connected to'a transmitting circuit, and said contact means and said shaft being adapted to be connected to a receivin circuit.

In testimon whereof I a x my signature in presence 0 two witnesses.

LEON J. LE 'PONTOIS. Witnesses: r

L. K. SAGER, G110. N. KERR.

0f non-magnetic material, a- 

